Pith Number

pith:KZ5TAGFT

pith:2026:KZ5TAGFTJ76BISIEBXZPYJCK3K

not attested not anchored not stored refs pending

Why Solve It Twice? Hierarchical Accumulation of Skills for Transfer-Efficient ML Engineering

Osmar R. Zaiane, Yashar Talebirad, Yongbin Kim

arxiv:2606.30911 v1 · 2026-06-29 · cs.AI · cs.LG · cs.MA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KZ5TAGFTJ76BISIEBXZPYJCK3K}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-01T00:17:21.400539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

567b3018b34ffc1449040df2fc244ada84f18654df6252ce84fcb1eeb31d13de

Aliases

arxiv: 2606.30911 · arxiv_version: 2606.30911v1 · doi: 10.48550/arxiv.2606.30911 · pith_short_12: KZ5TAGFTJ76B · pith_short_16: KZ5TAGFTJ76BISIE · pith_short_8: KZ5TAGFT

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/KZ5TAGFTJ76BISIEBXZPYJCK3K \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 567b3018b34ffc1449040df2fc244ada84f18654df6252ce84fcb1eeb31d13de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a2f4d705534f5fc3d770f7718197fafc8b1b1d4782d5c0a76ab8c1a62fdde61",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.MA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-29T20:59:14Z",
    "title_canon_sha256": "4a4bf570d1cdeba7e17066d450d052384603512fcbfe19bd03f84de546a452eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30911",
    "kind": "arxiv",
    "version": 1
  }
}